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evdev-touchpad: replace some numbers with a #define

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Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Peter Hutterer 2014-02-07 10:32:03 +10:00
parent 01ee0f7ef9
commit c81e1235c6
1 changed files with 3 additions and 2 deletions
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5
src/evdev-touchpad.c
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@ -82,6 +82,7 @@ enum touchpad_state {
};
#define TOUCHPAD_HISTORY_LENGTH 4
#define TOUCHPAD_MIN_SAMPLES 4 /* Number of samples before we start sending events */
struct touchpad_motion {
int32_t x;
@ -523,10 +524,10 @@ touchpad_update_state(struct touchpad_dispatch *touchpad, uint32_t time)
touchpad->motion_index = motion_index;
touchpad->motion_history[motion_index].x = touchpad->hw_abs.x;
touchpad->motion_history[motion_index].y = touchpad->hw_abs.y;
if (touchpad->motion_count < 4)
if (touchpad->motion_count < TOUCHPAD_HISTORY_LENGTH)
touchpad->motion_count++;
if (touchpad->motion_count >= 4) {
if (touchpad->motion_count >= TOUCHPAD_MIN_SAMPLES) {
touchpad_get_delta(touchpad, &dx, &dy);
filter_motion(touchpad, &dx, &dy, time);